180hp®
(305 eng.)
R45TS
0.045
Electronic
4 ® a
) 28
® 7
1
/a-9
190 hp (350
eng.)
R45TS
0.045
Electronic
6©
® a
) 26
600® 7
1
/z-9
1980
230 hp (350
eng.)
R45TS
0.045
Electronic
12 ® a
) 40
800 7Va-9
1981
190 hp®
R45TS
0.045
Electronic
6 ® a
) 38
700® 7
1
/2-9
1982
200 hp
R45TS
0.045
Electronic
® ® a
) NA
® 9-13
1984
205 hp
R45TS
0.045
Electronic
® ® a
) NA
® 9-13
If the specifications listed on the tune-up sticker under the hood differ from those listed here, the sticker specifications take precedence.
ATDC — After top dead center
BTDC — Before top dead center
TDC — Top dead center
® Hydraulic lifters — one turn down from zero lash
® W/automatic transmission — 450
© W/automatic transmission — 2°ATDC
® W/automatic transmission and A.I.R. — 4°ATDC
©W/automatic transmission and A.I.R. — 700
© W/automatic transmission and A.I.R. — 750
© W/automatic transmission — 600
® W/automatic transmission — 4°BTDC
® W/automatic transmission — 8°BTDC
® W/automatic transmission — 550
© W/automatic transmission — 12°BTDC
©California models— 44°BTDC
©California models— 4°BTDC
O450 rpm w/idle solenoid disconnected
® Models with aluminum cylinder heads use A.C. R43XL
®W/automatJc transmission — 750
©California with automatic transmission — 8°BTDC
® Use the specification listed on the tune-up sticker under the hood
©California only
©Estimated
©High altitude models with automatic transmission — 8°BTDC
@ High altitude models with automatic transmission — 650
©W/automatic transmission — 500 ram
Note: Idle speeds of automatic transmission vehicles are checked with the transmission in Drive.
Note: Spark plugs listed are original equipment A.C. Delco. These listings are not recommendations by Chilton for any product by name.
HI
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